Understand the World

Test your knowledge of some of the world's most pressing problems: global health, animal welfare, and existential risks to humanity.

Learn about how certain sounds can have a particular connotation or meaning by finding out what sound fits your personality best

Find a charity that matches your altruistic priorities and is highly effective at advancing its chosen mission

See if you can guess which social interventions had a positive effect, a negative effect, or no effect, based on a short description.

Our beliefs determine our behaviors and how we interact with others. Use this program to refine your beliefs and form more accurate views.

There is more to interpreting evidence than you might think. Learn to improve your predictions by understanding evidence on a deeper level using Bayes' rule.

Tips on how to recognize if someone is at risk of suicide and advice on how to speak to them about it from experts in suicide prevention

This tool helps you reflect on the meaning of the words we use to describe emotions and the sensations that accompany them, with the aim of helping you better articulate how you feel

Separate fact from B.S. in this fun quiz that asks you to identify the misconceptions among 30 common beliefs.

Examine different aspects of your relationship with a partner, close friend, or family member using an open, non-judgmental approach

This tool teaches the skill of Active Listening, a strategy commonly used by therapists, helpline volunteers, and hostage negotiators to help people feel supported and understood

Can you guess which of these high-profile experiments were legit?